[PATCH v3 1/2] iopoll: Introduce memory-mapped IO polling macros

Thierry Reding thierry.reding at gmail.com
Mon Sep 29 23:04:43 PDT 2014


On Mon, Sep 29, 2014 at 09:47:34AM -0700, Mitchel Humpherys wrote:
> On Mon, Sep 29 2014 at 01:31:37 AM, Thierry Reding <thierry.reding at gmail.com> wrote:
> > On Sat, Sep 27, 2014 at 08:27:28PM -0700, Mitchel Humpherys wrote:
> >> From: Matt Wagantall <mattw at codeaurora.org>
> >> 
> >> It is sometimes necessary to poll a memory-mapped register until its
> >> value satisfies some condition. Introduce a family of convenience macros
> >> that do this. Tight-loop and sleeping versions are provided with and
> >> without timeouts.
> >> 
> >> Cc: Thierry Reding <thierry.reding at gmail.com>
> >> Cc: Will Deacon <will.deacon at arm.com>
> >> Signed-off-by: Matt Wagantall <mattw at codeaurora.org>
> >> Signed-off-by: Mitchel Humpherys <mitchelh at codeaurora.org>
> >> ---
> >>  include/linux/iopoll.h | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++
> >>  1 file changed, 77 insertions(+)
> >>  create mode 100644 include/linux/iopoll.h
> >
> > It would be good to provide a changelog with each new version of the
> > patch. As it is I now have v2 and v3 of this patch in my inbox and I
> > have no idea what the differences are, so I'd need to download both
> > and run them through interdiff to find out.
> 
> Yeah I put the changelog in the cover letter.  There were no changes on
> this patch, though I admit that wasn't entirely clear now re-reading the
> cover letter text.  I also didn't account for the fact that you probably
> aren't reading the whole series since I only Cc'd you on this patch, not
> the whole series.  In any case, I probably shouldn't have re-sent the
> whole series after one minor modification to one patch in the series.

No worries, thanks for clarifying.

Thierry
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